X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=lib%2Fipv4.h;h=7f1e15929a7efb5155eff85fea4b75cb236f9f5f;hp=060f8ae92a501a74a221aca9180bfab75a6b0974;hb=5bba3124c8c23568def7a4804651a53f3a6b4fd2;hpb=d02d81ff9dbb12253957065752c56785aedccee3

diff --git a/lib/ipv4.h b/lib/ipv4.h
index 060f8ae9..7f1e1592 100644
--- a/lib/ipv4.h
+++ b/lib/ipv4.h
@@ -67,7 +67,6 @@ struct ip {
 #define IP_RF 0x8000
 #define IP_DF 0x4000
 #define IP_MF 0x2000
-#define IP_OFFMASK 0x1fff
 	uint8_t ip_ttl;
 	uint8_t ip_p;
 	uint16_t ip_sum;
@@ -75,6 +74,10 @@ struct ip {
 } __attribute__ ((__packed__));
 #endif
 
+#ifndef IP_OFFMASK
+#define IP_OFFMASK 0x1fff
+#endif
+
 #ifndef HAVE_STRUCT_ICMP
 struct icmp {
 	uint8_t icmp_type;